fix

Author: howieleung

sdk/ai/azure-ai-projects/tests/samples/sample_executor.py

@@ -419,7 +419,7 @@ def _resolve_additional_env_vars(
     *,
     sample_path: str,
     playback_values: dict[str, str],
-) -> dict[str, str] | None:
+) -> dict[str, str]:
     sample_filename = os.path.basename(sample_path)
 
     resolved: dict[str, str] = {}